Knoxville Weather Forecast

    • 54
    • 65

    Chance Rain Showers

    • 48
    • 65

    Slight Chance Rain Showers

    • 50
    • 67

    Partly Sunny

    • 53
    • 68

    Mostly Cloudy

    • 53
    • 71

    Mostly Cloudy

    • 56
    • 73

    Mostly Cloudy

Today 21 Sep Knox

Cloudy with a 20 percent chance of Showers. Highs in the mid 60s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 21 Sep Knox

Mostly cloudy. A slight chance of Showers in the Evening, then a chance of Showers after midnight. Lows in the mid 50s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

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  • Temperature Real-Time

Knoxville Temperature Statistics

September Temperature

Galesburg Municipal Airport (7.5 miles)

  • Lowest 14 September, 2026

    52.3 °F

  • Average September

    73.7 °F

  • Highest 3 September, 2026

    93.6 °F

Climate (2021–2026)

Galesburg Municipal Airport (7.5 miles)

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  • Average Low 2021–2026

    41.9 °F

  • Average 2021–2026

    52.2 °F

  • Average High 2021–2026

    62.5 °F
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